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CISA warns ransomware gangs exploit CVE-2024-1086, a Linux kernel flaw in netfilter: nf_tables, introduced in 2014 and patched in Jan 2024. CISA warned that ransomware gangs are exploiting CVE-2024-1086, a high-severity Linux kernel flaw introduced in 2014 and patched in January 2024. CISA didn’t provide details about the ransomware attacks exploiting the flaw or name […]
Security researchers have unveiled a sophisticated Linux rootkit capable of bypassing Elastic Security’s advanced detection mechanisms, demonstrating critical vulnerabilities in endpoint detection and response solutions. The Singularity rootkit e…
Qilin ransomware group used Linux binaries on Windows to evade EDRs, steal backups, and disable defenses via BYOVD attacks. Trend Research found that the Qilin ransomware group (aka Agenda) used a Linux ransomware binary on Windows systems via legitimate remote tools, bypassing Windows defenses and EDRs. The cross-platform method enables stealthy attacks, stealing backup credentials […]
Hacking the “Artificial” Machine on Hack The Box!
Conquered the “Artificial” machine on Hack The Box! 🕵️♂️ I scanned the target, identified a web server on port 80, and created an account to access its dashboard, where I uploaded a malicious .h5 file to trigger a reverse shell. Using a Docker environment, I gained a shell as the app user, found a SQLite database (users.db), and cracked its password hashes to reveal credentials for user “gael,” allowing me to grab the user flag via SSH from user.txt. For root, I discovered port 9898 running Backrest, forwarded it, and enumerated backup files, finding a bcrypt-hashed password in config.json. Decoding a base64 value yielded a plaintext password, granting access to the Backrest dashboard, where I exploited the RESTIC_PASSWORD_COMMAND to trigger a root shell and secure the root flag from root.txt.
#Cybersecurity #HackTheBox #CTF #PenetrationTesting #PrivilegeEscalation
The post Hack The Box: Artificial Machine Walkthrough – Easy Diffucilty appeared first on Threatninja.net.
The official website for Xubuntu, a community-maintained “flavour” of Ubuntu that ships with the Xfce desktop environment, has been compromised to serve Windows malware instead of the Linux distro. The malicious download Reports about a pot…
A new proof-of-concept (PoC) has been released for a serious vulnerability tracked as CVE-2025-8941, affecting the Pluggable Authentication Modules (PAM) used across Linux distributions. The flaw, rated 7.8 (High) on the CVSS scale, allows local attack…
Hackers exploit Cisco SNMP flaw CVE-2025-20352 in “Zero Disco” attacks to deploy Linux rootkits on outdated systems, researchers report. Trend Micro researchers disclosed details of a new campaign, tracked as Operation Zero Disco, that exploited a recently disclosed security flaw impacting Cisco IOS Software and IOS XE Software to deploy Linux rootkits on older, unprotected […]
About 200K Linux systems from Framework shipped with signed UEFI components vulnerable to Secure Boot bypass, allowing bootkit installation and persistence. Firmware security company Eclypsium warns that about 200,000 Linux systems from Framework are shipped with signed UEFI components vulnerable to Secure Boot bypass, allowing bootkit installation and persistence. The experts pointed out that signed […]
The Cybersecurity and Infrastructure Security Agency (CISA) has released an urgent alert for system administrators and IT teams worldwide. Researchers have confirmed that attackers are actively exploiting a serious vulnerability in the sudo utility use…
A team of security researchers has released an in-depth technical report on CVE-2025-32463, a critical local privilege escalation flaw in the widely used Linux sudo utility. The vulnerability, which affects sudo versions 1.9.14 through 1.9.17, allows a…